Apparatus and methods relating to image coding

US20020084335A1Inactive Publication Date: 2002-07-04ANOTO AB
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
ANOTO AB
Publication Date
2002-07-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

A product has a coding pattern on its surface. The coding pattern may include symbols representing at least two different values and where each symbol comprises a raster point and at least one marking. The raster point is included in a raster that extends over the surface and the value of each symbol is indicated by the placement of the marking in relation to the raster point. The markings may each have a spatial extent that, in combination, may at least partially form the image.
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Description

[0001] This application claims priority benefits based on Swedish Patent Application No. 0000950-6, filed Mar. 21, 2000, and U.S. Provisional Application No. 60 / 207,838, filed Mar. 30, 2000, the technical disclosures of each of which are hereby incorporated herein by reference.

[0002] The present invention relates to pattern recognition and detection. Specifically, the present invention relates to methods and apparatuses for reading information from images stored as a pattern on a surface.

[0003] In many contexts, both commercial and scientific, it is important to create an image on a surface, where the image contains as much information as possible. In this context, images can comprise, for example, photographically produced images of real objects and artificially generated images where information is represented by structures of varying blackness. In addition to the information, which is directly visible from the varying blackness over the image, it can be of use to add information ...

Claims

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